Week 1 Practices (0902)
1 Assign Values
Create two variables called x and y, and assign values 20250902 and 1031. Compute x / y.
2 Help
Use the help() function to check docs, e.g. data.frame() or mean().
3 Matrix
Create the following vectors:
name_vec <- c("James", "Noc", "Monica")
age_vec <- c(25, 30, 28)and create a 3 × 2 matrix with these two vectors.
Do you encounter errors? Can you print the matrix out? What’s the data type of the matrix?